You're correct. It would be better to say "entrepreneurs of the wrong kind flourish in America" - but that might sound odd or overly formal to everyday speaker

You're correct. It would be better to say "entrepreneurs of the wrong kind flourish in America" - but that might sound odd or overly formal to everyday speakers. It's similar to the rule about ending your sentence in a preposition. It's incorrect, but it also sounds more natural in many instances.